Car-coupling.



m. 686,5l8. I Patented Nov. I2, l90l.

\ c. c. HAZLETT & w. A. man;

CAR COUPLING.

mn filed. Dec, 20 1900 UNITED STATES PATENT OFFICE.

CHRISTOPHER C. HAZLETT AND WILLIAM A. RICH, OF ASHLAND, OHIO.

CAR-COUPLING.

SPECIFICATION formingpart of Letters Patent N 0. 686,518, dated November12, 1901.

Application filed December 20, 1900. Serial No. 40,539. (No model.)

To all whom it may concern.-

Be it known that we, CHRISTOPHER C. HAZ LETT and WILLIAM A. HIGH,citizens of the United States of America, residing at Ash land, in thecounty of Ashland and State of Ohio, have invented certain new anduseful Improvements in Oar-Couplers, of which the following is aspecification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements incar-couplers, the object being to provide improved means forantomatically throwing the knuckle outward when released from itslocking means.

The present invention relates more particularly to a car-coupler of theJ annoy type.

The invention has for its object to construct a device of this classthat will be extremely simple, strong, durable, and highly eificient inits operation.

With the above and other objects in view the invention consists in thenovel combination and arrangement of parts, to be hereinafter more fullydescribed, and specifically pointed out in the claims.

In describing the invention in detail reference is had to theaccompanying drawings, forming a part of this specification, and whereinlike numerals of reference indicate'corresponding parts throughout theseveral views, in which-- Figure 1 is a perspective View of thedrawhead, having our improvements attached thereto. Fig. 2 is a verticalsectional view thereof. Fig. 3 is an enlarged vertical sectional view ofthe upper portion of the lug and pin. Fig. 4 is an enlarged end view ofthe pivot-pin.

In the drawings the reference-numeral 1 indicates the draw-head, and 2the knuckle thereof, the latter being rotatably mounted in the lugs 3and 4, formed integral with the draw-head. The lug 3 has formed on itsupper face ratchet-teeth 5, extending radially upon said face.

The reference-numeral 6 represents a pin extending through the lugs 3and 4and through the knuckle 2, said pin carrying at its upper extremitya head 7, which carries ratchetteeth 8 on its under face, saidratchet-teeth 8 registering with the ratchet-teeth 5 of the lug 3. Thelower extremity of the said pin 6 has formed therein a slot 9 to receivea key-wedge 10, to which is secured a helical spring 11, which isadapted to encircle the lower end of the pin 6, the other end of saidspiral spring being attached at 12 to the under face of the knuckle. Thehelical spring is so constructed and arranged as to normally retain theknuckle outwardly, said spring also having a downward pressure againstthe keywedge, which will tend to engage the ratchetteeth of the headwith the ratchet-teeth of the lug and tend to lock the same.

Upon the uncoupling of the cars the tension of the spring 11 will serveto withdraw the knuckle from the draw-head and to maintain the same inthis position, so that the cars may be again readily coupled whenbrought together. I

The many advantages obtained by the use of ourimprovements will bereadily apparent, and it is thought a further detail description as tothe operation of the device is unnecessary.

It will be noted that various changes may be made in the details ofconstruction without departing from the general spirit of our invention.

Having thus fully described our invention, what we claim as new, anddesire to secure by Letters Patent, is-- I 1. In a car-coupler, thecombination with a draw-head, a pin secured in said draw-head carryingat its upper extremityahead,ratchetteeth secured to the under face ofsaid head, ratchet-teeth arranged upon said draw-head engaging theratchet-teeth of the head, a

engaging the ratchet-teeth of the head, a In testimony whereof we aflixour signaknuckle mounted upon said pin, a key-wedge tures in thepresence of two witnesses. secured in the lower end of said pin, and ahelical spring encircling the pin between the g g fi gg g g gi wedge andthe draw-head, said spring hav- J ingits one end connected to theknuckle and Witnesses:

its other end connected to the key-Wedge car- JOHN NOLAND,

ried by the pin substantially as described. SARAH I. HAZLETT.

